The USPS site referenced below has zipcode polygons and postal delivery
routes overlaid on an interactive map along with the number of
residences and business each route serves. Search for a zipcode or an
address to get started.
https://eddm.usps.com/eddm/customer/routeSearch.action
It looks like the zipcodes may be the Census version, just guessing by
the field naming convention. You can browse the ArcGIS Server here:
https://gis.usps.com/ArcSRV/rest/services/EDDM/EDDM_ZIP5/MapServer/0
Brian
On 6/25/2013 4:59 PM, Darrell Fuhriman wrote:
Part of the reason that the USPS disavows a geographic boundary for ZIP Codes
is that they often keep residential delivery and commercial delivery and
high-rise delivery (having apts or suites) separate even when they are next to
each other on the street. This can be confusing if you assume a geographic
basis for ZIP Codes.
Carl.
I've always thought the best way to think of it is that ZIP codes are built
from delivery routes. In essence they are linear features.
My favorite example is that many National Parks have a DC ZIP code, despite
being.. well... a long way from DC, because mail is routed through the National
Park Service headquarters.
d.
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